WO2015105413A1 - Outillage d'extrudeuse - Google Patents

Outillage d'extrudeuse Download PDF

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Publication number
WO2015105413A1
WO2015105413A1 PCT/NL2014/050918 NL2014050918W WO2015105413A1 WO 2015105413 A1 WO2015105413 A1 WO 2015105413A1 NL 2014050918 W NL2014050918 W NL 2014050918W WO 2015105413 A1 WO2015105413 A1 WO 2015105413A1
Authority
WO
WIPO (PCT)
Prior art keywords
cord guide
extruder
guide member
die
clamping
Prior art date
Application number
PCT/NL2014/050918
Other languages
English (en)
Inventor
Cornelis Wouteres Janszen
Original Assignee
Vmi Holland B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vmi Holland B.V. filed Critical Vmi Holland B.V.
Priority to US15/108,836 priority Critical patent/US10207445B2/en
Priority to ES14828361T priority patent/ES2700283T3/es
Priority to EP14828361.7A priority patent/EP3092120B1/fr
Priority to KR1020157029656A priority patent/KR101856303B1/ko
Priority to RU2016127537A priority patent/RU2676604C2/ru
Priority to PL14828361T priority patent/PL3092120T3/pl
Priority to JP2016545852A priority patent/JP2017501909A/ja
Priority to CN201480072691.4A priority patent/CN105899352B/zh
Priority to RS20181504A priority patent/RS58196B1/sr
Publication of WO2015105413A1 publication Critical patent/WO2015105413A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/695—Flow dividers, e.g. breaker plates
    • B29C48/70—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows
    • B29C48/705—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows in the die zone, e.g. to create flow homogeneity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/156—Coating two or more articles simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/256—Exchangeable extruder parts
    • B29C48/2562—Mounting or handling of the die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/307—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets specially adapted for bringing together components, e.g. melts within the die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
    • B29D2030/381—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre the inserts incorporating reinforcing parallel cords; manufacture thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B29K2021/003—Thermoplastic elastomers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/10—Cords, strands or rovings, e.g. oriented cords, strands or rovings
    • B29K2105/101—Oriented
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof
    • B29L2030/003—Plies; Breakers

Definitions

  • the invention relates to extruder tooling for placement in an extruder head and an extruder device comprising said extruder tooling and said extruder head.
  • EP 0 503 541 Al discloses an extruder head defined by a number of superimposed plates and by a casing housing the plates.
  • the plates when packed together, form an intermediate guide duct for reinforcing wires and two supply ducts for extruded elastomeric material located on opposite sides of the intermediate guide duct.
  • the plates provide for locking together parts of a wire guiding device and a die .
  • the case housing, the plates and the parts of the wire guiding device and the die need to be aligned accurately, so that the extruded elastomeric material is correctly supplied via the supply ducts to the reinforcing wires that are being guided through the intermediate guide duct.
  • Any misalignment, in particular between the wire guiding device and the die can cause irregularities in the supply of elastomeric material to the die and the shape, thickness, quality and/or consistency of the extruded strip that leaves the die.
  • the invention provides extruder tooling for placement in an extruder head and for forming a elastomeric strip with reinforcement cords
  • the extruder tooling comprises a die for applying elastomeric material to the reinforcement cords and a cord guide for guiding the reinforcement cords in a guide plane towards the die
  • the cord guide comprises a lower cord guide member and an upper cord guide member which are arranged to be mated with each other on opposite sides of the guide plane with the reinforcement cords extending in between them
  • the extruder head is provided with a lower flow channel and an upper flow channel which, at one end, are arranged to be in fluid communication with a supply of elastomeric material, and, at the other end, are arranged to debouch, via a lower slit in the lower cord guide member and an upper slit in the upper cord guide member, into the die from opposite sides of the guide plane
  • the lower cord guide member and the upper cord guide member are each provided with an inner body extending on
  • the respective slits can thus be at least partly defined in a single member, thereby reducing the influence of wear or tolerances on the shape and/or dimensions of the slits .
  • the cord guide is arranged for guiding the reinforcement cords in an entry direction towards the die, wherein the lower cord guide member and the upper cord guide member are provided with lower side bodies and upper side bodies, respectively, which, at both ends in a direction transverse to the entry direction, integrally connect the respective inner bodies to the respective outer bodies.
  • the respective slits can thus be at least partly defined in a single, integral member, thereby reducing the influence of wear or tolerances on the shape and/or dimensions of the slits.
  • the inner bodies are provided with oblique inner surfaces which are arranged to taper towards each other from opposite sides of the guide plane into a sharp tip facing into the entry direction.
  • the lower cord guide member and the upper cord guide member considered in a direction normal to the guide plane, extend both on the inside and the outside of the lower slit and the upper slit, respectively, with respect to the guide plane.
  • the dimensions of the respective slits in a direction normal to the guide plane can be at least partly defined in a single member, thereby reducing the influence of wear or tolerances on the shape and/or dimensions of the slits in said direction.
  • the lower slit and the upper slit in the circumferential direction thereof, are fully encapsulated by the lower cord guide member and the upper cord guide member, respectively.
  • the circumference of the respective slits can be at least partly defined in a single member, thereby reducing the influence of wear or tolerances on the shape and/or dimensions of the circumference .
  • the lower cord guide member and the outer cord guide member are arranged to be placed in direct contact with the die at the respective outer bodies of the cord guide members.
  • the direct contact can minimize tolerances between the cord guide and the die.
  • the die comprises a lower die member and an upper die member which are arranged to be mated with each other on opposite sides of the guide plane .
  • the lower die member and the upper die member are connected to the outer bodies of the lower cord guide member and the upper cord guide member, respectively.
  • the relative positioning between those respective members can be more accurate.
  • the reinforcement cords can be placed between both the cord guide members and the die members in preparation for the extrusion process, after which preparation the cord guide members and the die members can be placed simultaneously, with the reinforcement cords already inserted, into the extruder head. This can reduce the downtime of the extruder during changing of the extruder tooling .
  • the lower cord guide member and the lower die member are integral and/or form a monoblock, and wherein the upper cord guide member and the upper die member are integral and/or form a monoblock.
  • tolerances between the respective members can be reduced or even eliminated. It can be ensured that the die is always correctly aligned with cord guide.
  • the outer body of the lower cord guide member and outer body of the upper cord guide member are provided with a lower abutment surface and an upper abutment surface, respectively, wherein the lower die member and the upper die member are arranged to be placed in the extruder head in abutment with the lower abutment surface and the upper abutment surface, respectively.
  • the lower abutment surface and the upper abutment surface extend normal to the guide plane.
  • the abutment surfaces thus can present an alignment surfaces for alignment in a direction parallel to the guide plane .
  • one of the cord guide members is provided with a plurality of parallel guiding grooves for receiving and guiding the reinforcement cords towards the die, wherein at least three quarters of the circumference of the guide grooves is defined by the inner body of the one cord guide member, wherein the remaining circumference is open towards the other cord guide member.
  • the relatively small opening with respect to the rest of the guide grooves can reduce the risk or prevent that the reinforcement cords - after meticulous manual placement of each individual reinforcement cords in a corresponding groove - accidentally pop out of their respective cord guide grooves. In this manner, the reinforcement cords can be securely fitted to their respective cord guide grooves in preparation for the extrusion process.
  • the invention provides an extruder device comprising an extruder head and the extruder tooling according to any one of the preceding claims .
  • the extruder head is provided with a lower clamping body and an upper clamping body, each provided with a head clamping surface facing inwards with respect to the guide plane for clamping of the extruder tooling from both sides of the guide plane, wherein the lower cord guide member and the upper cord guide member are provided with a lower cord guide clamping surface and an upper cord guide clamping surface, respectively, which are arranged to face outwards with respect to the guide plane towards the respective inwardly facing head clamping surfaces, wherein the die is provided with die clamping surfaces which are arranged to be coplanar with the cord guide clamping surfaces.
  • the die and the cord guide can be clamped by the same head clamping surface.
  • the head clamping surfaces are arranged to abut and clamp the cord guide clamping surfaces and the respective coplanar die clamping surfaces at once.
  • the cord guide and the die can be mutually aligned by clamping only. There is no need for additional adjustment tools for fine-tuning. Also, as the clamping surfaces are subjected to equal wear, the alignment can be ensured even over longer periods of time.
  • cord guide clamping surfaces extend parallel to the guide plane.
  • clamping forces can be directed normal to the guide plane, thereby reducing the risk of misalignment due to transversal forces .
  • the clamping bodies are arranged to be moved from a clamping position in which the clamping bodies clamp the extruder tooling, into a release position in which at least one of the clamping bodies is moved away from the other of the clamping bodies, wherein, in the clamping position, the extruder tooling is fixated in the extruder head by the clamping bodies in a direction normal to the guide plane, wherein, in the release position, the extruder tooling is freely removable from the extruder head with respect to the clamping bodies.
  • the extruder head can be easily accessed for maintenance, placement or removal of the extruder tooling.
  • the extruder tooling is arranged to be fixated in a direction normal to the guide plane solely by clamping of the clamping bodies. This may simplify or reduce the actions required to remove the extruder tooling from the extruder head, which is important in view of the extruder downtime during changing of the extruder tooling.
  • the extruder device is provided with one or more fixation elements which are rotatably and eccentrically mounted with respect to a rotational axis that extends in a direction normal to the guide plane, wherein, in a first rotational position, the one or more fixation elements are arranged to be in clamping abutment with extruder tooling in a direction parallel to the guide plane, for fixation of the extruder tooling in said direction, wherein, in a second rotational position, the one or more fixation elements release the extruder tooling.
  • fixation elements are arranged to be manually rotatable between the first rotational position and the second rotational position.
  • figure 1 shows an exploded view in perspective of extruder tooling according to a first embodiment of the invention
  • figure 2 shows a cross section of the extruder tooling along the line II-II in figure 1;
  • figure 3 shows an extruder head, in open condition, for clamping the extruder tooling according to figures 1 and 2 ;
  • figure 4 shows a cross section of the extruder head, in closed condition, along the line IV-IV in figure 3;
  • figure 5 shows a cross section of alternative extruder tooling according to a second embodiment of the invention, placed in the same extruder head as shown in figure 4;
  • figure 6 shows a cross section of the extruder head along the line VI-VI in figure 4.
  • figure 7 show a detail of the extruder head according to the circle in figure 6.
  • Figures 1 and 2 show extruder tooling 1 according to a first exemplary embodiment of the invention, for use or placement in an extruder head 6, as shown in figures 3, 4, 6 and 7.
  • the extruder tooling 1 and the extruder head 6 are part of an extruder device which also comprises an extruder (not shown) for supplying elastomeric or rubber material to the extruder head 6.
  • Figure 5 shows alternative tooling 101 according to a second exemplary embodiment of the invention, for use or placement in the same extruder head 6 as shown in figure 4. Both embodiments of the extruder tooling 1, 101 are arranged for forming a substantially planar elastomeric strip 9 with reinforcement cords 91 embedded in or coated with extruded, elastomeric material 92.
  • the formed elastomeric strip 9 can for example be used for manufacturing cord-reinforced elastomeric components, in particular breaker components, for vehicle tires .
  • the extruder tooling 1 comprises a cord guide 2 and die 5.
  • the cord guide 2 is arranged at the side of the extruder tooling 1 where - in use - the reinforcement cords 91 enter the extruder tooling 1, as indicated by the entry arrow A.
  • the die 5 is arranged at the opposite side of the extruder tooling 1 where - in use - the reinforcement cords 91 embedded in elastomeric material 92, exit the extruder tooling 1, as indicated with exit arrow B.
  • the reinforcement cords 91 are guided by the cord guide 2 towards the die 5 in a guide plane P that is coplanar to the plane of the elastomeric strip 9 that is to be formed by the extruder tooling 1. It is noted that the reinforcements cords 91 in the figures are only shown schematically and their number and spacing is not representative of the actual number and spacing.
  • the cord guide 2 comprises a lower cord guide member 21 and an upper cord guide member 22.
  • the die 5 comprises a lower die member 51 and an upper die member 52.
  • the lower cord guide member 21 and the lower die member 51 are integrally formed, and are thus merely divided by an imaginary plane, as indicated with dashed lines in the figures.
  • the upper cord guide member 22 and the upper die member 52 are integrally formed, and are thus also merely divided by an imaginary plane, as indicated with dashed lines in the figures.
  • the lower cord guide member 21 and the lower die member 51 are arranged to be placed as one half of the extruder tooling 1 at one side of the guide plane P, preferably underneath the guide plane P when the guide plane P extends substantially horizontally, while the upper cord guide member 22 and the upper die member 52 are arranged to be placed as the other half of the extruder tooling 1 at the opposite side of the guide plane P, preferably above the guide plane P when the guide plane P extends substantially horizontally.
  • the upper cord guide member 22 is arranged to be superimposed or placed on top of the lower cord guide member 21.
  • the lower cord guide member 21 and the upper cord guide member 22, as shown in figures 4 and 6, are provided with a lower mating surface 23 and an upper mating surface 24, respectively, which are arranged to be placed in a mutually facing, abutting relationship.
  • the lower cord guide member 21 and the upper cord guide member 22 are provided with a lower cord guide clamping surface 25 and an upper cord guide clamping surface 26, respectively, for secure placement in the extruder head 6 in a manner which will be described in more detail after the detailed description of the extruder head 6.
  • the lower cord guide member 21 and the upper cord guide member 22 are furthermore provided with a plurality of lower alignment bores 27 and corresponding upper alignment bores 28, respectively, which, when mutually aligned, are able to receive locking pins (not shown) for interlocking the cord guide members 21, 22 in a predefined, mutually aligned position.
  • the cord guide members 21, 22 are interlocked so as to be substantially mirror symmetrical with respect to the guide plane P.
  • the cord guide members 21, 22 each comprises at least one side clamping surface 29 for an even more secure placement in the extruder head 6 in a manner which will be described in more detail after the detailed description of the extruder head 6.
  • the lower cord guide member 21 and the upper cord guide member 22 define at least part of a lower flow channel 31 and an upper flow channel 32, respectively.
  • the flow channels 31, 32 are arranged to be in fluid communication with a sideways supply of elastomeric material 92 from an extruder (not shown) to which the extruder head 6 is to be mounted.
  • the lower flow channel 31 and the upper flow channel 32 are arranged to split a common supply of elastomeric material 92 into a lower flow and an upper flow, as schematically indicated with flow arrows C and D, respectively, in figure 6.
  • the lower cord guide member 21 and the upper cord guide member 22 are provided with a lower slit 33 and an upper slit 34, respectively, which define a passageway in the respective cord guide members 21, 22 all the way up to the die 5.
  • the slits 33, 34 form continuations of the respective flow channels 31, 32 and direct the sideways supply of elastomeric material 92 towards the die 5.
  • the lower slit 33 and the upper slit 34 debouch via a lower exit 35 and an upper exit 36, respectively, from opposite sides of the guide plane P into the die 5 in a manner which will be described in more detail after the detailed description of the die 5.
  • the lower cord guide member 21 and the upper cord guide member 22 comprise a lower cord guide recess 37 and an upper cord guide recess 38, respectively, which are recessed with respect to the mating surfaces 23, 24 to define an aperture or intermediate guide duct through which the reinforcement cords 91 can be entered into the extruder tooling 1 in the entry direction A.
  • At least one of the cord guide member 21, 22, and in this preferred embodiment the lower cord guide member 21, is provided with cord guide grooves 39, which, as shown in detail in figure 7, are arranged for approximately three quarters of their circumference in the body of the lower cord guide member 21. The remaining quarter of their circumference is open and faces upwards towards the upper cord guide member 22. This allows for each reinforcement cord 91 to be laid into or fitted in a respective cord guide groove 39 from above.
  • the converging edges of the circumference near the opening reduce the risk or prevent that the reinforcement cords 91 - after meticulous manual placement of each individual reinforcement cord 91 in a corresponding groove 39 - accidentally pop out of their respective cord guide grooves 39. In this manner, the reinforcement cords 91 can be securely fitted to their respective cord guide grooves 39 in preparation for the extrusion process.
  • the lower slit 33 splits the lower cord guide member 21 into an inner body 41 located at the inside of the lower slit 33 with respect to the guide plane P and an outer body 43 located at the outside of the lower slit 33 with respect to the guide plane P.
  • the upper slit 34 splits the upper cord guide member 22 into an inner body 42 located at the inside of the upper slit 34 with respect to the guide plane P and an outer body 44 located at the outside of the upper slit 34 with respect to the guide plane P.
  • the respective inner bodies 41, 42 are provided with oblique inner surfaces which are arranged to taper towards each other from opposite sides of the guide plane P into a sharp tip, facing into the exit direction B.
  • the oblique inner surfaces define or bound the inside of the slits 33, 34.
  • the outer bodies 43, 44 are provided with oblique outer surfaces which extend along and opposite to the oblique inner surfaces and define or bound the outside of the slits 33, 34.
  • the outer bodies 43, 44 at least partially, and preferably almost completely overlap the inner bodies 41, 42 when viewed in a direction normal or perpendicular to the guide plane P.
  • the slits 33, 34 are bound by the cord guide members 21, 22 at the their respective inside and outside with respect to the guide plane P, by the inner body 41, 42 and the outer body 43, 44, respectively.
  • the lower cord guide member 21 and the upper cord guide member 22 are provided with lower side bodies 45 and upper side bodies 46, respectively, which - at both ends in a direction transverse to the entry direction A - integrally connect the respective inner bodies 41, 42 to the respective outer bodies 43, 44 or integrally connect the inner body 41 of the lower cord guide member 21 and the inner body 42 of the upper cord guide member 22 to the outer body 43 of the lower cord guide member 21 and the outer body 44 of the upper cord guide member 22, respectively.
  • the side bodies 45, 46 define or bound the sides of the respective slits 33, 34 between the respective inner bodies 41, 42 and the respective outer bodies 43, 44.
  • the slits 34, 34 considered in their circumferential direction substantially perpendicular to the course or the path of the slits 33, 34 through their respective cord guide members 21, 22, are fully encapsulated, surrounded or bound by their respective cord guide members 21, 22 along at least a part of said course or path.
  • the outer bodies 43, 44 of the respective cord guide members 21, 22 provide or present a means for integral connection of the respective die member 51, 52 directly in front of the cord guide member 21, 22.
  • integrally connecting the lower die member 51 to the lower cord guide member 21, and by integrally connecting the upper die member 52 to the upper cord guide member 22, it is possible to accurately position and/or align the die members 51, 52 to their respective cord guide members 21, 22. It also allows for the cord guide 2 and the die 5 to be placed simultaneously in the extruder head 6. Tolerances in a direction normal or perpendicular to the guide plane P can be prevented because the die members 51, 52 and their respective cord guide members 21, 22 are integral.
  • the die members 51, 52 are provided with a lower die clamping surface 55 and an upper die clamping surface 56, respectively, which for a coplanar continuation of the lower cord guide clamping surface 25 and the upper cord guide clamping surface 26, respectively.
  • the alternative extruder tooling 101 is identical to the extruder tooling 1 as shown in figures 1-4 and 6, apart from the lower cord guide member 121 and the lower die member 151 being separate bodies and the upper cord guide member 122 and the upper die member 152 being separate bodies.
  • the alternative extruder tooling 101 of figure 5 is provided with actual or physical first abutment surfaces 147, 148 at the outer bodies of the cord guide members 121, 122 facing corresponding opposite second abutment surfaces 157, 158 at the die members 151, 152.
  • the cord guide members 121, 122 and the die members 151, 152 are placed in abutment with their respective abutment surfaces 147, 148, 157, 158.
  • the extruder head 6 comprises a lower clamp body 61 and an upper clamp body 62 between which the extruder tooling 1 can be clamped.
  • Each clamp body 61, 62 is provided with a head clamping surface 63, 64, part of which is slightly recessed to receive and accommodate the extruder tooling 1 in a predetermined position.
  • the clamp bodies 61, 62 are provided with recessed accommodation surfaces 65, 66 which have the same width, considered parallel to the entry direction A, as the combined cord guide clamping surfaces 25, 26 and the die clamping surfaces 55, 56 of the extruder tooling 1.
  • Each of the clamp bodies 61, 62 is provided with pins 67, 68 fitting into corresponding holes 69, 70 of the other of the clamp bodies 61, 62, for proper mutual alignment of the clamp bodies 61, 62 during clamping.
  • the extruder tooling 1 is arranged to be placed and clamped between the clamp bodies 61, 62 without additional fixation by fixation means that require tools.
  • the only fixation of the extruder tooling 1 occurs by the action of two eccentric fixation elements 81, 82, one for each half of the extruder tooling 1, which lock the extruder tooling 1 against the strainer 84.
  • Figure 6 shows that the lower clamp body 61 and the upper clamp body 62 define at least partially a lower flow channel 71 and an upper flow channel 72, respectively, cooperating with and in fluid communication with the lower flow channel 31 and the upper flow channel 32, respectively, of the extruder tooling 1.
  • the extruder head 6 comprises a plate-like base 85 that is mounted to an extruder (not shown) to receive a supply of elastomeric material 92.
  • the lower clamp body 61 is mounted to the base 85 via a support block 86, while the upper clamp body 62 is rotatably coupled to the base 85 via hinges 87, so as to be moveable with a handlebar 83 in a direction of rotation E between a clamping position and a release position.
  • the extruder tooling 1 In the clamping position, the extruder tooling 1 is clamped in the direction normal or perpendicular to the guide plane P by the clamping action of the clamping bodies 61, 62 only.
  • the clamping force is generated by clamping bolts 88, 89 on opposite sides of the respective clamping bodies 61, 62.
  • the upper clamp body 62 is moved apart from the lower clamp body 61, such that the lower clamp body 61 is freely accessible to perform placement and removal operations on the extruder tooling 1. Due to the absence of any fixation elements that require tools, the extruder tooling 1 can be easily placed in and removed from the extruder head 6.
  • the extruder head 6 is provided with a filter or strainer 84 that is placed in the flow of the supply of elastomeric material between the extruder (not shown) and the extruder tooling 1.
  • the strainer 84 is provided with a mesh that is small enough to catch unwanted particles in the flow of elastomeric material, such that a split die can be prevented.
  • the extruder head 6 is provided with fixation elements 81, 82 which are mounted and rotatable about an eccentric rotation axis.
  • the eccentric fixation elements 81, 82 are rotatable between a first rotational position in which the fixation elements 81, 82 are in clamping abutment with the respective halves of the extruder tooling 1 and a second rotational position in which the fixation elements 81, 82 unlocking or releasing of the extruder tooling 1.
  • the clamping abutment acts parallel to the guide plane P in a direction transverse to the entry direction A.
  • the clamping force of the fixation elements 81, 82 causes the extruder tooling 1 to be forced against the oppositely located strainer 84, thereby ensuring an optimal connecting of the extruder tooling 1 to the strainer 84 and the supply of elastomeric material flowing through said strainer 84.
  • the fixation elements 81, 82 are arranged to be rotated manually, such that no separate tools are required for the removal of the extruder tooling 1 from the extruder head 6.
  • the invention relates to extruder tooling for placement in an extruder head and for forming a elastomeric strip with reinforcement cords
  • the extruder tooling comprises a die for applying elastomeric material to the reinforcement cords and a cord guide for guiding the reinforcement cords in a guide plane towards the die
  • the cord guide comprises a cord guide members
  • the extruder head is provided with a flow channels which are arranged to debouch, via slits in the cord guide members, into the die
  • the lower cord guide member and the upper cord guide member are each provided with an inner body extending on the inside of the lower slit and the upper slit, respectively, and an outer body extending on the outside of the lower slit and the upper slit, respectively, wherein the inner bodies are integrally connected to the respective outer bodies.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Cette invention concerne un outillage d'extrudeuse destiné à être inséré dans une tête d'extrudeuse et à former une bande élastomère pourvue de câblés de renfort, l'outillage d'extrudeuse comprenant une filière pour appliquer la matière élastomère aux câblés de renfort et un dispositif de guidage de câblé pour guider les câblés de renfort dans un plan de guidage vers la filière, ledit dispositif de guidage de câblé comportant des éléments de guidage de câblé. La tête d'extrudeuse est pourvue de canaux d'écoulement qui sont conçus de façon à déboucher, par l'intermédiaire de fentes ménagées dans les éléments de guidage de câblé, dans la filière, l'élément de guidage de câblé inférieur et l'élément de guidage de câblé supérieur étant tous deux constitués d'un corps intérieur s'étendant à l'intérieur de la fente inférieure et de la fente supérieure, respectivement, et d'un corps extérieur s'étendant à l'extérieur de la fente inférieure et de la fente supérieure, respectivement, les corps intérieurs étant raccordés aux corps extérieurs respectifs de façon à ne former qu'une seule pièce.
PCT/NL2014/050918 2014-01-10 2014-12-30 Outillage d'extrudeuse WO2015105413A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US15/108,836 US10207445B2 (en) 2014-01-10 2014-12-30 Extruder tooling
ES14828361T ES2700283T3 (es) 2014-01-10 2014-12-30 Utillaje de extrusor
EP14828361.7A EP3092120B1 (fr) 2014-01-10 2014-12-30 Outillage d'extrudeuse
KR1020157029656A KR101856303B1 (ko) 2014-01-10 2014-12-30 압출기 툴링
RU2016127537A RU2676604C2 (ru) 2014-01-10 2014-12-30 Экструзионный инструмент
PL14828361T PL3092120T3 (pl) 2014-01-10 2014-12-30 Oprzyrządowanie wytłaczarki
JP2016545852A JP2017501909A (ja) 2014-01-10 2014-12-30 押出機のツーリング
CN201480072691.4A CN105899352B (zh) 2014-01-10 2014-12-30 挤压机工具
RS20181504A RS58196B1 (sr) 2014-01-10 2014-12-30 Ekstruderski alat

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2012075A NL2012075C2 (en) 2014-01-10 2014-01-10 Extruder tooling.
NL2012075 2014-01-10

Publications (1)

Publication Number Publication Date
WO2015105413A1 true WO2015105413A1 (fr) 2015-07-16

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Country Status (12)

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US (1) US10207445B2 (fr)
EP (1) EP3092120B1 (fr)
JP (1) JP2017501909A (fr)
KR (1) KR101856303B1 (fr)
CN (1) CN105899352B (fr)
ES (1) ES2700283T3 (fr)
HU (1) HUE040330T2 (fr)
NL (1) NL2012075C2 (fr)
PL (1) PL3092120T3 (fr)
RS (1) RS58196B1 (fr)
RU (1) RU2676604C2 (fr)
WO (1) WO2015105413A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017204624A1 (fr) * 2016-05-25 2017-11-30 Vmi Holland B.V. Tête d'extrudeuse pour l'extrusion d'un extrudat renforcé par un cordon
TWI692397B (zh) * 2017-09-27 2020-05-01 荷蘭商Ｖｍｉ 荷蘭公司 用以擠壓出簾布強化押出物的押出機頭與使用押出機頭以擠壓出簾布強化押出物的方法

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KR102699397B1 (ko) * 2017-04-03 2024-08-27 브이엠아이 홀랜드 비.브이. 코드 보강된 타이어 구성 요소를 압출하기 위한 압출기 시스템 및 방법
CN112223705B (zh) * 2020-08-27 2022-04-22 山东亿博光电科技有限公司 一种挤塑机的穿线装置

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EP0339510A2 (fr) * 1988-04-27 1989-11-02 Bridgestone/Firestone, Inc. Tête d'extrusion pour la fabrication de matériau en feuille renforcée intérieurement par des cordes relativement rapprochées
EP0503541A1 (fr) 1991-03-15 1992-09-16 Bridgestone/Firestone, Inc. Tête d'extrusion pour la production de plis pour pneumatiques de véhicule routier
EP2517854A1 (fr) * 2011-04-29 2012-10-31 Ticona LLC Section d'imprégnation avec surface amont et procédé pour l'imprégnation de mèches de fibres

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US3888713A (en) * 1972-05-24 1975-06-10 Steelastic Co Method for producing reinforced fabric
FR2463488A1 (fr) * 1979-08-06 1981-02-20 Habia Sa Procede et tete d'extrusion de matiere isolante pour cables electriques isoles plats a multiconducteurs ainsi que les cables ainsi obtenus
EP0339510A2 (fr) * 1988-04-27 1989-11-02 Bridgestone/Firestone, Inc. Tête d'extrusion pour la fabrication de matériau en feuille renforcée intérieurement par des cordes relativement rapprochées
EP0503541A1 (fr) 1991-03-15 1992-09-16 Bridgestone/Firestone, Inc. Tête d'extrusion pour la production de plis pour pneumatiques de véhicule routier
EP2517854A1 (fr) * 2011-04-29 2012-10-31 Ticona LLC Section d'imprégnation avec surface amont et procédé pour l'imprégnation de mèches de fibres

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017204624A1 (fr) * 2016-05-25 2017-11-30 Vmi Holland B.V. Tête d'extrudeuse pour l'extrusion d'un extrudat renforcé par un cordon
NL2016826A (en) * 2016-05-25 2017-11-30 Vmi Holland Bv Extruder head for extruding cord-reinforced extrudate
CN109219507A (zh) * 2016-05-25 2019-01-15 Vmi 荷兰公司 用于挤出帘布增强挤出物的挤出机机头
RU2728999C2 (ru) * 2016-05-25 2020-08-03 Вмай Холланд Б.В. Экструзионная головка для экструзии армированного кордом экструдата
US10906261B2 (en) 2016-05-25 2021-02-02 Vmi Holland B.V. Extruder head for extruding cord-reinforced extrudate
CN109219507B (zh) * 2016-05-25 2021-08-17 Vmi 荷兰公司 用于挤出帘布增强挤出物的挤出机机头
CN113619067A (zh) * 2016-05-25 2021-11-09 Vmi荷兰公司 用于挤出帘布增强挤出物的挤出机机头及使用其的方法
CN113619068A (zh) * 2016-05-25 2021-11-09 Vmi荷兰公司 用于挤出帘布增强挤出物的挤出机机头及使用其的方法
CN113619068B (zh) * 2016-05-25 2023-08-29 Vmi荷兰公司 用于挤出帘布增强挤出物的挤出机机头及使用其的方法
TWI692397B (zh) * 2017-09-27 2020-05-01 荷蘭商Ｖｍｉ 荷蘭公司 用以擠壓出簾布強化押出物的押出機頭與使用押出機頭以擠壓出簾布強化押出物的方法

Also Published As

Publication number Publication date
EP3092120A1 (fr) 2016-11-16
PL3092120T3 (pl) 2019-02-28
US10207445B2 (en) 2019-02-19
RU2016127537A (ru) 2018-02-16
US20160325478A1 (en) 2016-11-10
RU2676604C2 (ru) 2019-01-09
RU2016127537A3 (fr) 2018-08-15
NL2012075C2 (en) 2015-07-13
ES2700283T3 (es) 2019-02-14
EP3092120B1 (fr) 2018-09-12
CN105899352A (zh) 2016-08-24
KR101856303B1 (ko) 2018-05-09
CN105899352B (zh) 2019-03-29
HUE040330T2 (hu) 2019-03-28
JP2017501909A (ja) 2017-01-19
KR20150131311A (ko) 2015-11-24
RS58196B1 (sr) 2019-03-29

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